//package review.cider;
//
//class Person{
//    public Person(){
//        System.out.println("this is a person");
//    }
//
//}
//public class Teacher extends Person{
//
//    private String name="Tom";
//    public Teacher(){
//        System.out.println("this is a teacher");
//        super();
//    }
//
//
//    public static void main(String[] args) {
//        Teacher teacher=new Teacher();
//        System.out.println(this.name);
//    }
//}